If an element |'X|' is assumed to have the types of radii, then their order is

If an element \'X\' is assumed to have the types of radii, then their order is
If an element |'X|' is assumed to have the types of radii, then their order is
If an element |'X|' is assumed to have the types of radii, then their order is
If an element |'X|' is assumed to have the types of radii, then their order is

order